The First 5 Use Cases to Test

You have your subscription and understand the basics. Before tackling ambitious projects, start with these five high-impact, low-risk use cases. Each takes less than an hour to test, and each produces a result you can show a skeptical partner the very next day.

Use Case #1: Drafting Professional Emails

This is the most immediate use case. ChatGPT transforms your notes into structured emails, adapts the tone to the recipient, and offers several variations when you are unsure about the phrasing. Everything hinges on the context you provide: the recipient, the objective, the desired tone, and the key facts that give the message weight.

“Draft an email to a supplier negotiating payment terms of 60 days instead of 30. Tone: professional but firm. We have been a client for 4 years with an annual volume of €120,000.”

Notice that the tenure and volume are not decorative details: they are what give the message its negotiating leverage. The result is a draft ready for review in seconds.

Use Case #2: Summarizing Long Documents

Reports, contracts, tenders, meeting minutes: your SMB is drowning in documents, and most are only skimmed due to lack of time. ChatGPT condenses them into actionable key points. Copy the text or upload the file directly—all plans allow this, within varying limits—and ask for an output that prepares you to make a decision rather than just a simple summary.

“Summarize this document in 5 key points. For each point, indicate the action to take and the potential owner.”

Asking for actions and owners transforms passive reading into a record of decisions. Then, review the source document on points that commit you: a summary might omit a reservation or a condition.

Use Case #3: Preparing Meetings

ChatGPT creates agendas, lists of questions to address, and post-meeting summaries. The gain happens on both sides of the appointment: beforehand, you arrive with a framework and prepared questions rather than just intuition.

“I am meeting a prospect in the logistics sector. Their company has €5M in revenue and is looking to optimize their supply chain. Propose a 45-minute agenda with key questions to ask.”

Afterward, dictate your raw notes and ask for a structured summary with action items. You send the record within the hour instead of the next day, and the effect on perceived credibility is immediate.

Use Case #4: Generating Content Ideas

LinkedIn posts, blog articles, newsletters: ChatGPT suggests angles, outlines, and first drafts. Quality here depends on how precisely you describe your business and the desired effect.

“I run an SMB specializing in digital transformation consulting. Propose 10 LinkedIn post ideas that showcase our expertise, including a catchy hook and the main angle for each.”

You can build a one-month editorial calendar this way in a single short session. Not every idea will be good; it is enough if three of them are.

Use Case #5: Analyzing Customer Feedback

Google reviews, complaint emails, satisfaction survey results: this material piles up without ever being exploited because reading it all takes a full day. Gather it, either by copy-pasting or in a file, and have it categorized.

“Analyze these 50 customer reviews. Classify them by theme (product quality, customer service, delivery times, price). For each theme, provide the overall sentiment and the top 3 priority improvement actions.”

You get a structured analysis in minutes, which you should verify against a sample of reviews. If you are not on a professional plan, remove customer names and contact details beforehand. The themes you impose in the prompt are the ones you can act on: do not ask for free categorization if you already know your four key performance drivers.

How to Test Effectively

Do not test all five use cases at once. Pick the one that saves you the most time relative to your activity, and work it through to the end. The first time, do the task yourself and with ChatGPT, then honestly compare the quality and time spent: this is the only way to know if the gain is real or if you have simply shifted the effort to reviewing.

The first result is rarely satisfactory, and that is normal. Clarify the context, expected format, and tone; in two or three iterations, you will get a usable result, and the refined prompt becomes reusable. Finally, note the time saved per occurrence and the frequency of the task, then multiply: this monthly figure is what will justify the subscription.

One final word on what causes these initial tests to fail. A vague prompt—“Write me an email”—can only produce a generic result: always provide context, recipient, and objective. Do not give up after a single attempt, since the first result is just a starting point and requesting an adjustment costs less than rewriting a prompt from scratch. And never paste an output without reading it first: ChatGPT makes factual errors, even in the middle of perfectly fluent text.

Your Turn

Test your two priority tasks. Return to the list of five repetitive tasks identified in the first lesson. For the two priority tasks, write a detailed prompt inspired by the examples above, test it, note the time spent and rate the result quality out of 10, then iterate until the score meets your standards.

Official sources: Prompting (ChatGPT documentation) · Uploading files and audio to ChatGPT (OpenAI Help Center)

Key Takeaways

• Start with a single use case, master it, then expand.
• The 5 high-impact cases: emails, summaries, meetings, content, customer analysis.
• Result quality depends on prompt quality—be precise.
• Always measure time saved to justify the investment.